18 articles · Curated and written by practitioners
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Microsoft investigates Teams desktop client launch failures on Windows
Microsoft has opened a service health advisory, TM1466820, after some Windows users found the Teams desktop client would not open or took up to two minutes to load. The company recommends Teams on the web or mobile while it hunts for a root cause.
Microsoft Defender Flags Legitimate Google Search Links as Malicious
Microsoft is investigating a Defender for Office 365 Safe Links misclassification that blocks legitimate Google search URLs, showing "Opening this website might not be safe" warnings across affected tenants.
NovaCookies Phishing Kit Uses Real Docusign Emails to Steal Microsoft 365 Sessions
A subscription phishing platform called NovaCookies uses genuine Docusign envelopes and legitimate Microsoft or Google redirect hops to steal authenticated Microsoft 365 sessions, bypassing MFA for hundreds of organizations, according to researchers at Island.
Microsoft Lets Users Restyle New Outlook to Look Like Outlook Classic
Microsoft is rolling out a theme that reskins New Outlook for Windows and Outlook on the Web to visually resemble Classic Outlook, easing the transition ahead of Classic Outlook's opt-out phase starting April 2026, but the cosmetic change does not restore missing features like VBA macros or COM add-ins.
CVE-2026-62873: Critical Microsoft 365 Admin Center EoP Flaw Patched
Microsoft patched CVE-2026-62873, a critical elevation-of-privilege flaw in Microsoft 365 Admin Center caused by improper cryptographic signature verification, as part of its August 2026 Patch Tuesday release covering 421 CVEs.
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How to Change Your SharePoint Domain Name in Microsoft 365
Learn how to change your SharePoint domain name (tenant rename) in Microsoft 365 using PowerShell. Covers prerequisites, the Start-SPOTenantRename cmdlet, post-rename verification, and limitations like the one-time rename restriction.
How to Delegate Distribution List Management in Exchange Online
Learn how to delegate distribution list management in Exchange Online. Covers assigning owners via ManagedBy, enabling the MyDistributionGroups role, and configuring Send As / Send on Behalf permissions. Includes EAC and PowerShell methods.
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How to Change the Mailbox Language in Outlook
Learn how to change the mailbox language in Outlook, both through Outlook on the web settings and with the Set-MailboxRegionalConfiguration PowerShell cmdlet. Covers renaming default folders, date/time formats, and verifying the change.
How to Track Email Messages in Exchange Online Microsoft 365
Track email messages in Exchange Online using the modern EAC message trace (90-day history) and PowerShell's Get-MessageTraceV2 cmdlet. Covers search setup, result analysis, reporting, and troubleshooting.
How to Install and Configure Microsoft Entra Connect for Directory Sync
Install and configure Microsoft Entra Connect to synchronize your on-premises Active Directory with Microsoft Entra ID, enabling hybrid identity with password hash sync, OU filtering, and SSO.
DEBULL Tooling Abuses Microsoft Device-Code Flow to Hijack M365 Accounts
Researchers at ZeroBEC say a Microsoft 365 device code phishing campaign observed from late June into early July 2026 used collaboration-themed lures and a reusable tooling layer dubbed DEBULL to hijack accounts without stealing passwords or defeating MFA directly. The activity shares strong overlaps with Microsoft's Storm-2372 tradecraft.
How to Delete Windows Autopilot Devices from Intune, Entra ID, and M365
Learn the correct deletion sequence to fully remove stale Windows Autopilot devices from Intune, Entra ID, and Microsoft 365 - including hybrid-joined devices, orphaned records, and BitLocker key cleanup.
How to Fix Outlook Password Prompts When Connecting to Exchange Server
Stop Outlook's endless credential loop when connecting to Exchange. Clear cached credentials, fix the Microsoft 365 Autodiscover hijack, reset the token cache, and check the server.
How to Check Intune Tenant Service Release Version
Find your Intune tenant's current service release in under two minutes from the Tenant status page, and learn how to read the YYMM version number Microsoft uses.
How to Configure Automatic SharePoint Library Sync Using Microsoft Intune
Push SharePoint document libraries to your Windows fleet automatically with an Intune Settings catalog policy, so they appear in File Explorer without any user action.
How to Completely Uninstall Microsoft Office with the Support and Recovery Assistant
Fully remove Microsoft Office - including leftover files, registry entries, and licenses that a normal uninstall misses - using Microsoft's official Support and Recovery Assistant (SaRA), for a single PC or a whole fleet.
Samsung's April 2026 Update Breaks Microsoft 365 Apps on Galaxy Phones
After installing Samsung's April 2026 security update, Galaxy users - mainly on the S25 Ultra and S24 - report Microsoft Teams, Outlook, OneDrive, and Authenticator repeatedly failing. Community and reporting trace the cause to a WebView regression, with workarounds available while a fix rolls out.
Microsoft Confirms and Fixes Classic Outlook Crash Caused by Teams Meeting Add-in
Microsoft confirmed a known issue (EX1254044) where classic Outlook crashes and restarts in Safe Mode on older Office builds running the newest Teams Meeting Add-in, and has since shipped a fix.